SAND-MOLD MOLDING METHOD AND SAND-MOLD MOLDING APPARATUS
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United States of America Patent
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Feb 18, 2016
app pub date -
Jan 22, 2014
filing date -
Mar 27, 2013
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Abstract
A sand-mold molding method for producing a molded article obtained by packing foamed sand may include stirring a binder with an aggregate to form foamed sand; forming a cavity via clamping a metallic mold closed; packing the foamed sand into the cavity of the metallic mold and then heating and solidifying the foamed sand; and opening the metallic mold partially to provide a gap in the metallic mold while maintaining the cavity.
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